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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands | Nov. 30, 2017 | Aug. 31, 2017
--- | --- | ---
Receivables, allowance for doubtful account | $ 6 | $ 7
Prepaid expenses and other current assets, fair value of derivative | 71 | 0
Other non-current assets, fair value of derivative instruments | 3,278 | 2,547
Other long-term liabilities, fair value of derivative instruments | 346 | 682
Other long-term liabilities, defined benefit plan | $ 5,335 | $ 5,051
Common stock, par value per share | $ 0.0001 | $ 0.0001
Common stock, shares authorized | 45,000,000 | 45,000,000
Common stock, shares issued | 31,278,595 | 31,275,727
Common stock, shares outstanding | 30,403,610 | 30,400,742
Treasury stock, shares | 874,985 | 874,985

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